sh: trivial build cleanups.

Several errors were spotted during building for custom config (SMP
included). Although SMP still does not compile (no ipi and
__smp_call_function) and does not work, this looks a bit cleaner.
Some other errors obtained via gcc-4.1.0 build.

Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cf-enabler.c

@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/mm.h>
 #include <linux/vmalloc.h>
+#include <linux/interrupt.h>
 #include <asm/io.h>
 #include <asm/irq.h>
 
@@ -149,6 +150,11 @@ static int __init cf_init_se(void)
 	ctrl_outb(0x42, PA_MRSHPC_MW2 + 0x200);
 	return 0;
 }
+#else
+static int __init cf_init_se(void)
+{
+	return -1;
+}
 #endif
 
 int __init cf_init(void)

arch/sh/kernel/cpu/sh4/probe.c

@@ -12,6 +12,7 @@
  */
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/smp.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 

arch/sh/kernel/smp.c

@@ -10,6 +10,8 @@
  * Free Software Foundation; either version 2 of the License, or (at your
  * option) any later version.
  */
+
+#include <linux/err.h>
 #include <linux/cache.h>
 #include <linux/cpumask.h>
 #include <linux/delay.h>

include/asm-sh/cpu-sh4/freq.h

@@ -24,6 +24,9 @@
 #define FRQMR1			0xffc80014
 #else
 #define FRQCR			0xffc00000
+#define FRQCR_PSTBY		0x0200
+#define FRQCR_PLLEN		0x0400
+#define FRQCR_CKOEN		0x0800
 #endif
 #define MIN_DIVISOR_NR		0
 #define MAX_DIVISOR_NR		3

include/asm-sh/dma.h

@@ -13,6 +13,7 @@
 
 #include <linux/spinlock.h>
 #include <linux/wait.h>
+#include <linux/sched.h>
 #include <linux/sysdev.h>
 #include <asm/cpu/dma.h>
 

include/asm-sh/io.h

@@ -116,13 +116,13 @@ void __raw_readsl(unsigned long addr, void *data, int longlen);
  * redefined by userlevel programs.
  */
 #ifdef __readb
-# define readb(a)	({ unsigned long r_ = __raw_readb(a); mb(); r_; })
+# define readb(a)	({ unsigned int r_ = __raw_readb(a); mb(); r_; })
 #endif
 #ifdef __raw_readw
-# define readw(a)	({ unsigned long r_ = __raw_readw(a); mb(); r_; })
+# define readw(a)	({ unsigned int r_ = __raw_readw(a); mb(); r_; })
 #endif
 #ifdef __raw_readl
-# define readl(a)	({ unsigned long r_ = __raw_readl(a); mb(); r_; })
+# define readl(a)	({ unsigned int r_ = __raw_readl(a); mb(); r_; })
 #endif
 
 #ifdef __raw_writeb

include/asm-sh/smp.h

@@ -15,7 +15,7 @@
 
 #ifdef CONFIG_SMP
 
-#include <asm/spinlock.h>
+#include <linux/spinlock.h>
 #include <asm/atomic.h>
 #include <asm/current.h>
 

include/asm-sh/spinlock.h

@@ -11,6 +11,7 @@
 #define __ASM_SH_SPINLOCK_H
 
 #include <asm/atomic.h>
+#include <asm/spinlock_types.h>
 
 /*
  * Your basic SMP spinlocks, allowing only a single CPU anywhere
@@ -42,7 +43,7 @@ static inline void __raw_spin_lock(raw_spinlock_t *lock)
 
 static inline void __raw_spin_unlock(raw_spinlock_t *lock)
 {
-	assert_spin_locked(lock);
+	//assert_spin_locked(lock);
 
 	lock->lock = 0;
 }
@@ -88,6 +89,11 @@ static inline void __raw_write_unlock(raw_rwlock_t *rw)
 	__raw_spin_unlock(&rw->lock);
 }
 
+static inline int __raw_write_can_lock(raw_rwlock_t *rw)
+{
+	return (atomic_read(&rw->counter) == RW_LOCK_BIAS);
+}
+
 static inline int __raw_read_trylock(raw_rwlock_t *lock)
 {
 	atomic_t *count = (atomic_t*)lock;

include/asm-sh/spinlock_types.h

@@ -9,7 +9,9 @@ typedef struct {
 	volatile unsigned long lock;
 } raw_spinlock_t;
 
-#define __SPIN_LOCK_UNLOCKED		{ 0 }
+#define __RAW_SPIN_LOCK_UNLOCKED	{ 1 }
+
+#include <asm/atomic.h>
 
 typedef struct {
 	raw_spinlock_t lock;